Injection and expansion integrated device

Abstract

The invention relates to an integrated device for injection and expansion, which comprises a hollow outer tube, and a movable socketed inner tube is arranged inside the outer tube; the front end of the inner tube is connected with an injection needle, and the rear end is connected with a hollow handle; The front end of the outer tube is covered with an expansion balloon, and the rear end is connected with the cylindrical shell; the expansion balloon is connected with the gas injection pipeline inside the outer tube; the handle is movably set in the shell. The invention has reasonable design, simple structure, convenient and safe operation, can quickly establish a submucosal tunnel, saves operation time, and can greatly reduce the risk of perforation or bleeding, creating favorable conditions for improving operation quality.

Description

technical field

[0001] The invention relates to a medical device, in particular to a device for forming a submucosal tunnel through injection and expansion under an endoscope, specifically an integrated device for injection and expansion. Background technique

[0002] In recent years, endoscopic treatment technology has developed rapidly, and endoscopic minimally invasive surgery has become a safe and effective treatment for many gastrointestinal diseases. Endoscopic tunneling technology is widely used in endoscopic treatment, and the establishment of submucosal tunnel is the basis for the follow-up of this type of surgery, and it is often the link where complications are most likely to occur, and it is also the step that takes the longest time in surgery. It is a key step in the success of the operation. At present, the establishment of submucosal tunnel is mostly carried out alternately by submucosal injection and sharp separation with endoscopic electric knife. Although...

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